Yes, or one of the above mentioned programs.
I do have an ancient, (1994), version of SignPost which was the original Macintosh bridge application for plotters. I used it with my first CI and Illy 88 all the way through Illustrator V9, i THINK. It's been a long time and I don't remember for sure.
This is a full version, complete with manual and updated floppy disks. Yea Floppies.
Your G4 may not even have a floppy drive. I'd be willing to part with it for the cost
of S&H.
The more I've read your replies the more I'm hesitant to offer any more information. You are purchasing an old Mac with an obsolete OS with NO support. Most of us Mac users have long ago left OS 9 and have no desire to go back there. If anything goes wrong with your system you are $___t our of luck. Personally, I wouldn't spend $100 on that G4 unless I could see it operate. They were great computers and there are many still running but they're a dime a dozen because no one is purchasing them.
Heck, you can get a brand new Mac mini for $599 on the Apple store if you have a monitor and keyboard, which would be a much better investment for you but you still won't have a driver for that 3100.
If you already have a decent PC. You should be able to cut from Corel Draw from what I hear, but that's definitely not my department.